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    <title>在框架中显示网页</title>
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            <frameset cols="25%,*">
                 <frame src ="left.html"name="left">
                 <frame src ="right.html"name="right">
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     <noframes>
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             此网页使用了框架，但您的浏览器不支持框架
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     </noframes>
     </frameset>
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